freeswan težava

[Dalibor]

Narejen imam vpn tunel z freeswanom. Stvar dela nekaj časa in nato ne 
spusti nobenega prometa skozi, čeprav ipsec auto --status pokaže, da je 
vse ok.

v /var/log/auth.log dobim
Sep  6 15:23:05 localhost Pluto[10699]: "Dusseldorf-Frankfurt" #140: no 
acceptable Proposal in IPsec SA
Sep  6 15:23:15 localhost Pluto[10699]: "Dusseldorf-Frankfurt" #3: Quick 
Mode I1 message is unacceptable because it uses a previously used 
Message ID 0xc1edef39 (perhaps this is a duplicated packet)

/etc/ipsec.conf
config setup
        interfaces=%defaultroute
        klipsdebug=none
        plutodebug=none
        plutoload=%search
        plutostart=%search
        uniqueids=yes

conn %default
        keyingtries=1
        compress=yes
        disablearrivalcheck=no
        authby=rsasig
        leftrsasigkey=%cert
        rightrsasigkey=%cert

conn Dusseldorf-Frankfurt
        type=tunnel
        left=xxx
        leftnexthop=xxx
        leftsubnet=192.168.2.0/24
        right=xxxx
        rightnexthop=xxxx
        rightsubnet=10.51.0.0/16
        authby=secret
        auth=esp
        ikelifetime=7800
        pfs=yes
        compress=no
        keyingtries=0
        auto=start

V čem bi lahko bil problem?